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the angle between a ray that strikes a surface and the normal to that surface at the point of contact
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The angle formed by the line normal to the surface and the direction in which a reflected ray moves
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An inwardly curved mirrored that is a portion of a sphere and that converges incoming light rays
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An outward curved mirrored surface that isportion of a sphere and that diverges incoming light rays
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A transverse wave consisting of oscillating electric and magnetic fields at right angles to each other
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The alignment of electron magnetic waves in such a way that the vibrations of the electric fields in each of the waves are parrallel to each other
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An image formed when rays of light actually intersect at a single point
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The turning back of an electromagnetic wave at the surface of a substance
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An image formed by light rays that only appear to intersect
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